菩薩戒義疏 2.27

2.27

第十一、國使戒。夫為敵國使命，必覘候盈虛，矯誑策略，邀合戰陣，情存勝負，以乖本慈，文云「國賊」。七眾同犯，大小俱制。序事中三：一、不應，二、引況，三、舉非結過。序為利惡心，揀除和合，不得入軍中。軍中喧雜，非佛子所行處。興師相伐殺，乖慈，不應為也。此使命為相害因緣故制。

Eleventh, the precept against acting as a state emissary: an emissary for an enemy state must spy on strength and weakness, use deceitful strategies, instigate battle formations, and maintain a desire for victory or defeat, thereby contravening fundamental compassion; the text calls this a "bandit of the state." All seven assemblies commit the offense alike; both the Great and Small [Vehicles] prescribe against it. In the narration of matters there are three points: first, it is not proper; second, adducing a comparison; third, adducing the wrongdoing and concluding the offense. It describes having an evil mind for profit, casting aside harmony, and being forbidden to enter an army. An army is noisy and chaotic, not a place where a child of the Buddha should go. Raising troops to attack and kill one another contravenes compassion and should not be done. This emissary work is prohibited because it serves as a condition for mutual harm.